From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753967AbcJNPYO (ORCPT ); Fri, 14 Oct 2016 11:24:14 -0400 Received: from ec2-52-27-115-49.us-west-2.compute.amazonaws.com ([52.27.115.49]:57218 "EHLO s-opensource.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752098AbcJNPYF (ORCPT ); Fri, 14 Oct 2016 11:24:05 -0400 From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org Cc: Javier Martinez Canillas , Guenter Roeck , linux-watchdog@vger.kernel.org, Wim Van Sebroeck Subject: [PATCH 1/2] watchdog: bcm7038_wdt: fix module autoload Date: Fri, 14 Oct 2016 12:23:50 -0300 Message-Id: <1476458631-29685-1-git-send-email-javier@osg.samsung.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If the driver is built as a module, autoload won't work because the module alias information is not filled. So user-space can't match the registered device with the corresponding module. Export the module alias information using the MODULE_DEVICE_TABLE() macro. Before this patch: $ modinfo drivers/watchdog/bcm7038_wdt.ko | grep alias $ After this patch: $ modinfo drivers/watchdog/bcm7038_wdt.ko | grep alias alias: of:N*T*Cbrcm,bcm7038-wdtC* alias: of:N*T*Cbrcm,bcm7038-wdt Signed-off-by: Javier Martinez Canillas --- drivers/watchdog/bcm7038_wdt.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/watchdog/bcm7038_wdt.c b/drivers/watchdog/bcm7038_wdt.c index e238df4d75a2..4814c00b32f6 100644 --- a/drivers/watchdog/bcm7038_wdt.c +++ b/drivers/watchdog/bcm7038_wdt.c @@ -216,6 +216,7 @@ static const struct of_device_id bcm7038_wdt_match[] = { { .compatible = "brcm,bcm7038-wdt" }, {}, }; +MODULE_DEVICE_TABLE(of, bcm7038_wdt_match); static struct platform_driver bcm7038_wdt_driver = { .probe = bcm7038_wdt_probe, -- 2.7.4